Method of controlling a drying apparatus for a printing press, drying apparatus and printing press

Abstract

In a drying apparatus equipped with a light source to dry a drying matter of a print by irradiating light of the light source to the print, a correlation between information relating to the time for which the light source is lit and information relating to the amount of light of the light source is preset. Then, the information relating to the elapsed time for which the light source is lit during the light source is lit is detected so that light of the light source is controlled to a constant amount, regardless of the elapsed time for which the light source is lit, based on information relating to a reference amount of light, which information is obtained from the preset correlation between the information relating to the time for which the light source is lit and the information relating to the amount of light with reference to the information relating to the elapsed time at the time of the detection.

1. A method of controlling a drying apparatus for a printing press, in which said drying apparatus is equipped with a light source to dry a drying matter of a print by irradiating light of said light source on said print, comprising:
 presetting a correlation between information relating to the time for which said light source is lit and information relating to the amount of light of said light source;  
 detecting information relating to the elapsed time for which the light source is lit during said light source is lit; and  
 controlling light of the light source to a constant amount, regardless of the elapsed time for which the light source is lit, based on information relating to a reference amount of light, said information relating to the reference amount being obtained from the preset correlation between said information relating to the time for which the light source is lit and said information relating to the amount of light with reference to said information relating to the elapsed time at the time of the detection.  
 
   
   
     2. A method of controlling a drying apparatus for a printing press, in which said drying apparatus is equipped with a light source to dry a drying matter of a print by irradiating light of said light source on said print, comprising:
 presetting a correlation between information relating to the value of the electric current passing through said light source and information relating to the amount of light of said light source;  
 detecting information relating to the value of the electric current passing through said light source during said light source is lit; and  
 controlling light of the light source to a constant amount, regardless of the elapsed time for which the light source is lit, based on information relating to a reference amount of light, said information relating to the reference amount being obtained from the preset correlation between said information relating to the value of the electric current and said information relating to the amount of light with reference to said information relating to the value of the electric current at the time of the detection.  
 
   
   
     3. The method of controlling a drying apparatus according to  claim 1 , wherein said light source is a UV lamp. 
   
   
     4. The method of controlling a drying apparatus according to  claim 2 , wherein said light source is a UV lamp. 
   
   
     5. A drying apparatus for a printing press equipped with a light source to dry a drying matter of a print by irradiating light of said .light source on said print, comprising:
 a setting means for presetting a correlation between information relating to the time for which said light source is lit and information relating to the amount of light of said light source;  
 a detection device for detecting information relating to the elapsed time for which said light source is lit during said light source is lit; and  
 a light source control part for controlling light of said light source to a constant amount, regardless of the elapsed time for which said light source is lit, based on information relating to a reference amount of light, said information relating to the reference amount of light being obtained from the preset correlation between said information relating to the time for which said light source is lit and said information relating to the amount of light with reference to said information relating to the elapsed time at the time of the detection.  
 
   
   
     6. A drying apparatus for a printing press equipped with a light source to dry a drying matter of a print by irradiating light of said light source on said print, comprising:
 a setting means for presetting a correlation between information relating to the value of the electric current passing through said light source and information relating to the amount of light of said light source;  
 a detection device for detecting information relating to the value of the electric current passing through said light source during said light source is lit; and  
 a light source control part for controlling light of said light source to a constant amount, regardless of the elapsed time for which said light source is lit, based on information relating to a reference amount of light, said information relating to the reference amount of light being obtained from the preset correlation between said information relating to the value of the electric current passing through said light source and said information relating to the amount of light with reference to said information relating to the elapsed time at the time of the detection.  
 
   
   
     7. The drying apparatus according to  claim 5 , wherein said light source is a UV lamp. 
   
   
     8. The drying apparatus according to  claim 6 , wherein said light source is a UV lamp. 
   
   
     9. A printing press equipped with said drying apparatus according to  claim 5 . 
   
   
     10. A printing press equipped with said drying apparatus according to  claim 6 .